Ok so you are given the moles so just multiply that by avagadro's number to find the atoms
1 cent ----------> 0.01 g
52 cent ---------> g
g = 52 * 0.01
answer 0.52 g
hope this helps!.
Answer:
The reason carbon-13 is more abundant than carbon-14 despite them both being isotopes is because carbon-13 is stable and doesn't decay into other elements, unlike carbon 14.
Explanation:
Carbon isotopes come in three forms. By far the most common isotope of carbon is carbon-12 (12C), which contains six neutrons in addition to its six protons. The next heaviest carbon isotope, carbon-13 (13C), has seven neutrons. Both 12C and 13C are called stable isotopes since they do not decay into other forms or elements over time. The rare carbon-14 (14C) isotope contains eight neutrons in its nucleus. Unlike 12C and 13C, this isotope is unstable, or radioactive. Over time, a 14C atom will decay into a stable product.
Answer:
1.239 * 10^8 Kg
Explanation:
Since all the electricity consumed comes from natural gas;
amount of electricity consumed = 700 * 300,000 = 2.1 * 10^8 kWh
So, amount of CO2 consumed is given by;
amount of electricity consumed * amount of CO2 per kWh
Hence,
Amount of CO2 = 2.1 * 10^8 kWh * 0.59 = 1.239 * 10^8 Kg
Answer:
0.2544 moles of water were removed from the sample by the heating process.
Explanation:
Mass of empty evaporating dish = 9.687 g
Mass of evaporating dish and sample of hydrate = 18.407 g
Mass of hydrate = 18.407 g - 9.687 g = 8.72 g
Mass of the evaporating dish and hydrate after heating = 14.007 g
14.007 g = mass of dish + mass of dehydrate
Mass of dehydrate = 14.007 g - 9.867 g = 4.14 g
Mass of water evaporated = hydrated sample - dehydrated sample
= 8.72 g - 4.14 g = 4.58 g
Moles of water evaporated :
0.2544 moles of water were removed from the sample by the heating process.